36
Motor-driven lock for timber and steel doors
Operating instructions
B-2156x | B-2157x
11.2021 | | Designed in Germany
EN
2.2 Application range
The series 21 motor-driven lock is a self-locking, electromotive unlockable escape door lock. It is
designed for the active leaf of single or double leaf timber and steel doors. The lock is approved for
use on fire and smoke protection doors.
Latchbolt lock with self-locking and panic function E for:
1-leaf doors:
B-2156x
2-leaf doors:
B-2157x
2.3 Technical data
General description
Electromotive unlocking and automatically locking
motor-driven lock with latchbolt and integrated control unit
For 1- or 2-leaf timber and steel door systems
For entrance doors with panic function E
Handle position DIN right/DIN left
The top-locking feature can be retrofitted as an option
For fire and smoke protection doors to EN 1634 with
emergency power buffer
Motor-driven lock to EN 14846
Approved in combination with corresponding door hardware
for emergency exit devices to EN 179 and panic exit devices to
EN 1125
Lengths/Dimensions
Backset (D) = 55, 60, 65, 80 und 100 mm
Latchbolt: 32 x 12 mm
Height max. 165 mm
Lock case thickness max. 15.5 mm
Clearance behind backset max. 33 mm
Locking mechanism
Prepared for profile cylinder (PC),
hole distance 72 mm (standard)
Prepared for Swiss round cylinder (CH-RC),
hole distance 74 mm
Power supply
Operating voltage: 24 V DC ±15%
Current consumption: max. 1 A
Current consumption in standby: max. 20 mA
